The cave glowed softly with green light from the crystals. Katara glared at Zuko angrily. She didn't trust him, the war had cost her (her personally) her mother. Oh, wait, what's that? Zuko's mother is (somewhat ambiguously) dead (or at least absent) from his life also. Katara softened; looks like she'll put her faith in him after all.
"This is water from the spirit oasis at the North Pole. It has special properties so I have been saving it for something important. I don't know if it would work but…" Katara reached up and touched his scar, "cosmetic surgery for someone who I didn't trust five minutes ago seems like a worthy use of it, after all, it's not like I've recently witnessed a heroic ally get hurt and subsequently die from those injuries while I waited for something like this which I consider to be important to come along."
